Description of the Issue

A permissions issue or a file format error, similar to the images below will be encountered when trying to open a document or file from Microsoft Word, Power Point or Excel.

Environment

This has been seen happening on multiple versions of macOS and various versions of MS Office.

Solution

Typically, this is noticed when duplicate fonts are activated at the same time as fonts in your system folder. Microsoft typically installs its own fonts in the system folder for use in its applications.

Please try the following steps:

Close all open Microsoft applications.

Disable/deactivate all fonts in your Suitcase Libraries (Not the system fonts).

Once completed, try opening the document(s) again.

Activating fonts at the same time will result in a short or brief activation period. Please use the following link for more information.

If the above step does not work, please try clearing your font cache. This can be a contributing factor when it has not been cleaned/cleared. You can use Suitcase Fusion to Clean Font Caches. From Suitcase Fusion's File menu select Clean Font Caches. This will purge your system font caches. Once this is complete, restart your Mac.